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    MULTIMODAL POLYETHYLENE MATERIAL
    1.
    发明申请
    MULTIMODAL POLYETHYLENE MATERIAL 审中-公开
    多模聚乙烯材料

    公开(公告)号：WO2003020821A1

    公开(公告)日：2003-03-13

    申请号：PCT/US2002/027503

    申请日：2002-08-28

    Applicant: DOW GLOBAL TECHNOLOGIES INC. ,  SCHRAMM, Detlef ,  QUACK, Wolfgang ,  DAMEN, Julien ,  CHAM, Pak-Meng

    Inventor： SCHRAMM, Detlef ,  QUACK, Wolfgang ,  DAMEN, Julien ,  CHAM, Pak-Meng

    IPC: C08L23/04

    CPC classification number: C08L23/12 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2308/00 ,  C08L2314/06 ,  C08L2666/04 ,  C08L2666/06

    Abstract: The present invention relates to a polyethylene resin having a multimodal molecular weight distribution, said resin being further characterized in that it has a density in the range of from about 0.925 g/ccm to about 0.950 g/ccm, a melt index (I 2 ) In the range of from about 0.05 g/10 min to about 5 g/10 min, and in that it comprises at least one high molecular weight (HMW) ethylene interpolymer and at least a low molecular weight (LMW) ethylene polymer, and a composition comprising such resin. Also provided is a shaped article comprising said resin or composition, in particular a pipe.

    Abstract translation: 本发明涉及具有多峰分子量分布的聚乙烯树脂，所述树脂的特征还在于其密度范围为约0.925g / cm 3至约0.950g / cm 2，熔体指数（I 2）In 约0.05g / 10min至约5g / 10min的范围，其中它包含至少一种高分子量（HMW）乙烯互聚物和至少一种低分子量（LMW）乙烯聚合物，和组合物 包括这种树脂。 还提供了包含所述树脂或组合物，特别是管的成形制品。

    STABILIZED POLYETHYLENE MATERIAL
    2.
    发明申请
    STABILIZED POLYETHYLENE MATERIAL 审中-公开
    稳定的聚乙烯材料

    公开(公告)号：WO2005056657A2

    公开(公告)日：2005-06-23

    申请号：PCT/US2004/040695

    申请日：2004-12-03

    Applicant: DOW GLOBAL TECHNOLOGIES INC. ,  HO, Thoi, H. ,  CHAM, Pak-Meng ,  SCHRAMM, Detlef ,  SEHANOBISH, Kalyan

    Inventor： HO, Thoi, H. ,  CHAM, Pak-Meng ,  SCHRAMM, Detlef ,  SEHANOBISH, Kalyan

    IPC: C08K5/00

    CPC classification number: F16L11/06 ,  C08K5/13 ,  C08K5/49 ,  C08K2201/014 ,  C08L23/04 ,  Y10T428/139

    Abstract: Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

    Abstract translation: 公开了稳定的聚乙烯材料，其提供热，机械和加工性能的有利平衡组合，并且其在氯化水环境中保持其物理性能。 这些材料包括具有在热水环境中提供提取阻力的组分的抗氧化系统，并且另外对于管内水中的氯和与外部管道接触的氧气另外提供抗氧化性。

    BREATHABLE ARTICLES
    4.
    发明申请
    BREATHABLE ARTICLES 审中-公开
    可呼吸文章

    公开(公告)号：WO2003095197A1

    公开(公告)日：2003-11-20

    申请号：PCT/US2003/014016

    申请日：2003-05-05

    Applicant: DOW GLOBAL TECHNOLOGIES INC. ,  MARTIN, Jill, M. ,  CHAM, Pak-Meng

    Inventor： MARTIN, Jill, M. ,  CHAM, Pak-Meng

    IPC: B32B27/12

    CPC classification number: B32B27/12 ,  A61F13/51458 ,  A61F13/51462 ,  B32B7/12 ,  B32B27/08 ,  B32B27/205 ,  B32B27/32 ,  B32B38/0008 ,  B32B2307/724 ,  B32B2419/00 ,  B32B2509/00 ,  B32B2535/00 ,  B32B2555/02 ,  Y10T442/60 ,  Y10T442/676

    Abstract: Layered, water vapor permeable composite comprise at least one water vapor permeable film layer and at least one substrate layer, the water vapor permeable film (i) comprising at least one film forming polymer and at least one inert porous filler, (ii) having a water vapor transmission rate of at least 1000 g/m 2 /day, and (iii) activated. Representative film forming polymers include ethylene interpolymers, and representative fillers include silica glass beads. One exemplary method of activating the film is to subject it to sufficient pressure such that the glass beads are crushed within the film matrix.

    Abstract translation: 层状水蒸汽可渗透的复合材料包括至少一个水蒸气可透过膜层和至少一个基底层，该水蒸汽可渗透膜（i）包含至少一种成膜聚合物和至少一种惰性多孔填料，（ii）具有 水蒸汽透过率至少为1000 g / m 2 /天，（iii）活化。 代表性的成膜聚合物包括乙烯互聚物，代表性的填料包括二氧化硅玻璃珠。 激活膜的一个示例性方法是使其受到足够的压力，使得玻璃珠在膜基质内被粉碎。

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